heroui logo

Windows Recovery Environment Disabled Via Reagentc

Sigma Rules

View Source
Summary
This rule is designed to detect any attempts to disable the Windows Recovery Environment (WinRE) using the Reagentc.exe tool, a command-line utility in Windows for managing WinRE settings. When WinRE is disabled, it poses a threat to system recovery processes, which could potentially be manipulated by malicious actors. The rule specifically looks for process creation events where Reagentc.exe appears, particularly focused on command-line arguments that include '/disable'. Given that legitimate users may also use this command for administrative purposes, detection may lead to false positives. Users should be cautious and investigate the context when this command is executed, especially on systems that should maintain recovery options. This detection rule aids in identifying unauthorized or suspicious activities that could compromise PC stability and recovery capabilities, increasing the overall security posture of Windows environments.
Categories
  • Endpoint
  • Windows
Data Sources
  • Process
Created: 2025-07-31